kopia lustrzana https://github.com/OpenRTX/OpenRTX
kbd_task: improve long-press behaviour
rodzic
e59085a85e
commit
400a766f54
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@ -22,6 +22,7 @@
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#include <stdint.h>
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#include <stdbool.h>
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#include <os_cfg_app.h>
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/**
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* The following enum provides a set of flags to be used to check which buttons
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@ -68,7 +69,7 @@ static const uint8_t kbd_num_keys = 29;
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/**
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* Time interval in ticks after which a keypress is considered a long-press
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*/
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static const uint8_t kbd_long_interval = 29;
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static const uint16_t kbd_long_interval = OS_CFG_TICK_RATE_HZ * 1;
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/**
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* Structure that represents a keyboard event payload
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@ -141,19 +141,22 @@ static void kbd_task(void *arg)
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// Variable for saving previous and current keyboard status
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keyboard_t prev_keys = 0;
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keyboard_t keys = 0;
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bool long_press = false;
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bool send_event = false;
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while(1)
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{
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// Reset flags and get current time
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long_press = false;
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send_event = false;
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now = OSTimeGet(&os_err);
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// Lock display mutex and read keyboard status
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OSMutexPend(&display_mutex, 0u, OS_OPT_PEND_BLOCKING, 0u, &os_err);
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keys = kbd_getKeys();
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OSMutexPost(&display_mutex, OS_OPT_POST_NONE, &os_err);
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// Compare with previous keyboard status
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// The key status has changed
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if(keys != prev_keys)
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{
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bool long_press = false;
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bool send_event = false;
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now = OSTimeGet(&os_err);
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for(uint8_t k=0; k < kbd_num_keys; k++)
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{
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// Key has been pressed
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@ -166,30 +169,42 @@ static void kbd_task(void *arg)
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else if((prev_keys & (1 << k)) && !(keys & (1 << k)))
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{
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send_event = true;
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// Check timestamp
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if((now - key_ts[k]) >= kbd_long_interval)
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long_press = true;
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}
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}
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if(send_event)
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{
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kbd_msg_t msg;
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msg.long_press = long_press;
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// OR the saved key status with the current key status
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// Do this because the new key status is got when the
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// key is lifted, and does not contain the pressed key anymore
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msg.keys = keys | prev_keys;
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// Send event_t as void * message to use with OSQPost
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event_t event;
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event.type = EVENT_KBD;
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event.payload = msg.value;
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// Send keyboard status in queue
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OSQPost(&ui_queue, (void *)event.value, sizeof(event_t),
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OS_OPT_POST_FIFO + OS_OPT_POST_NO_SCHED, &os_err);
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}
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// Save current keyboard state as previous
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prev_keys = keys;
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}
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// Some key is kept pressed
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else if(keys != 0)
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{
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// Check for long-press timers
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for(uint8_t k=0; k < kbd_num_keys; k++)
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{
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// The key is pressed and its long-press timer is over
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if(keys & (1 << k) && (now - key_ts[k]) >= kbd_long_interval)
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{
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long_press = true;
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send_event = true;
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}
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}
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}
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if(send_event)
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{
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kbd_msg_t msg;
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msg.long_press = long_press;
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// OR the saved key status with the current key status
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// Do this because the new key status is got when the
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// key is lifted, and does not contain the pressed key anymore
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msg.keys = keys | prev_keys;
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// Send event_t as void * message to use with OSQPost
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event_t event;
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event.type = EVENT_KBD;
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event.payload = msg.value;
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// Send keyboard status in queue
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OSQPost(&ui_queue, (void *)event.value, sizeof(event_t),
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OS_OPT_POST_FIFO + OS_OPT_POST_NO_SCHED, &os_err);
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}
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// Save current keyboard state as previous
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prev_keys = keys;
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// Read keyboard state at 20Hz
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OSTimeDlyHMSM(0u, 0u, 0u, 50u, OS_OPT_TIME_HMSM_STRICT, &os_err);
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}
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